Overflow Diagnosis
WARNING: This page is about a different car, the 2013 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.
Perform secondary air system flow abnormality diagnosis using both sides of combination valves secondary air amount when both are closed.
Judge as secondary air system flow abnormality either if there is excessive secondary air flow amount with the RH combination valve closed, or if there is excessive secondary air flow amount with the LH combination valve closed.
- Abnormality Judgment
If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.
JUDGMENT VALUE
| Malfunction Criteria | Threshold Value | DTC |
|---|---|---|
| Air flow amount when the right bank is closed (value from Map 4) | > Value of Map 8 | P0411 |
| or | ||
| Air flow amount when the left bank is closed (value from Map 5) | > Value of Map 9 | |
| Voltage at P0RL measurement - Voltage at P0R measurement | ≥ 4 V | |
| Voltage at P0RL measurement - Voltage at P0L measurement | ≥ 4 V | |
| P0RL: Both banks all closed pressure P0R: Right bank all closed pressure P0L: Left bank all closed pressure |
||
Time Needed for Diagnosis: 4000 ms + 992 ms + 992 ms + 992 ms
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
- Normality Judgment
Judge as OK and clear the NG if the continuous time while the following conditions are established is more than the predetermined time.
JUDGMENT VALUE
| Malfunction Criteria | Threshold Value | DTC |
|---|---|---|
| Air flow amount when the right bank is closed (value from Map 4) | ≤ Value of Map 8 | P0411 |
| or | ||
| Air flow amount when the left bank is closed (value from Map 5) | ≤ Value of Map 9 | |
| Voltage at P0RL measurement - Voltage at P0R measurement | ≥ 4 V | |
| Voltage at P0RL measurement - Voltage at P0L measurement | ≥ 4 V | |
| P0RL: Both banks all closed pressure P0R: Right bank all closed pressure P0L: Left bank all closed pressure |
||
Time Needed for Diagnosis: 4000 ms + 992 ms + 992 ms + 992 ms
MAP 1
| Amount of intake air (g (oz)/s) Engine speed (rpm) |
0 (0) | 60 (2.12) |
| 0 | 0 | 0 |
| 10000 | 0 | 0 |
| (V) | ||
MAP 2
| Amount of intake air (g (oz)/s) Engine speed (rpm) |
0 (0) | 60 (2.12) |
| 0 | 0 | 0 |
| 10000 | 0 | 0 |
| (V) | ||
MAP 3
| Intake air (g (oz)/rev) | 0.1 (0) | 0.25 (0.01) | 0.3 (0.01) | 1 (0.04) |
| Threshold value (V) | 13 | 13 | 3.25 | 3.25 |
MAP 4
| Secondary air pressure in the pipe when both comb. valve is closing kPa (mmHg, inHg) Secondary air pressure in the pipe when LH comb. valve is closing kPa (mmHg, inHg) | 69.3 (520, 20.5) | 74.6 (560, 22) | 80 (600, 23.6) | 85.3 (640, 25.2) | 90.6 (680, 26.8) | 96 (720, 28.3) | 101.3 (760, 29.9) | 106.6 (800, 31.5) | 112 (840, 33.1) | 117.3 (880, 34.6) | 122.6 (920, 36.2) | 128 (960, 37.8) | 133.3 (1000, 39.4) | 138.6 (1040, 40.9) | 144 (1080, 42.5) | 149.3 (1120, 44.1) |
| 69.3 (520, 20.5) | 0 | 200 | 400 | 600 | 800 | 1000 | 1200 | 1400 | 1600 | 1800 | 2000 | 2200 | 2400 | 2400 | 2400 | 2400 |
| 74.6 (560, 22) | -200 | 0 | 200 | 400 | 600 | 800 | 1000 | 1200 | 1400 | 1600 | 1800 | 2000 | 2200 | 2400 | 2400 | 2400 |
| 80 (600, 23.6) | -400 | -200 | 0 | 200 | 400 | 600 | 800 | 1000 | 1200 | 1400 | 1600 | 1800 | 2000 | 2200 | 2400 | 2400 |
| 85.3 (640, 25.2) | -600 | -400 | -200 | 0 | 200 | 400 | 600 | 800 | 1000 | 1200 | 1400 | 1600 | 1800 | 2000 | 2200 | 2400 |
| 90.6 (680, 26.8) | -800 | -600 | -400 | -200 | 0 | 200 | 400 | 600 | 800 | 1000 | 1200 | 1400 | 1600 | 1800 | 2000 | 2200 |
| 96 (720, 28.3) | -1000 | -800 | -600 | -400 | -200 | 0 | 200 | 400 | 600 | 800 | 1000 | 1200 | 1400 | 1600 | 1800 | 2000 |
| 101.3 (760, 29.9) | -1200 | -1000 | -800 | -600 | -400 | -200 | 0 | 200 | 400 | 600 | 800 | 1000 | 1200 | 1400 | 1600 | 1800 |
| 106.6 (800, 31.5) | -1400 | -1200 | -1000 | -800 | -600 | -400 | -200 | 0 | 200 | 400 | 600 | 800 | 1000 | 1200 | 1400 | 1600 |
| 112 (840, 33.1) | -1600 | -1400 | -1200 | -1000 | -800 | -600 | -400 | -200 | 0 | 200 | 400 | 600 | 800 | 1000 | 1200 | 1400 |
| 117.3 (880, 34.6) | -1800 | -1600 | -1400 | -1200 | -1000 | -800 | -600 | -400 | -200 | 0 | 200 | 400 | 600 | 800 | 1000 | 1200 |
| 122.6 (920, 36.2) | -2000 | -1800 | -1600 | -1400 | -1200 | -1000 | -800 | -600 | -400 | -200 | 0 | 200 | 400 | 600 | 800 | 1000 |
| 128 (960, 37.8) | -2200 | -2000 | -1800 | -1600 | -1400 | -1200 | -1000 | -800 | -600 | -400 | -200 | 0 | 200 | 400 | 600 | 800 |
| 133.3 (1000, 39.4) | -2400 | -2200 | -2000 | -1800 | -1600 | -1400 | -1200 | -1000 | -800 | -600 | -400 | -200 | 0 | 200 | 400 | 600 |
| 138.6 (1040, 40.9) | -2400 | -2400 | -2200 | -2000 | -1800 | -1600 | -1400 | -1200 | -1000 | -800 | -600 | -400 | -200 | 0 | 200 | 400 |
| 144 (1080, 42.5) | -2400 | -2400 | -2400 | -2200 | -2000 | -1800 | -1600 | -1400 | -1200 | -1000 | -800 | -600 | -400 | -200 | 0 | 200 |
| 149.3 (1120, 44.1) | -2400 | -2400 | -2400 | -2400 | -2200 | -2000 | -1800 | -1600 | -1400 | -1200 | -1000 | -800 | -600 | -400 | -200 | 0 |
| (L/min) | ||||||||||||||||
MAP 5
| Secondary air pressure in the pipe when both comb. valve is closing kPa (mmHg, inHg) Secondary air pressure in the pipe when RH comb. valve is closing kPa (mmHg, inHg) | 69.3 (520, 20.5) | 74.6 (560, 22) | 80 (600, 23.6) | 85.3 (640, 25.2) | 90.6 (680, 26.8) | 96 (720, 28.3) | 101.3 (760, 29.9) | 106.6 (800, 31.5) | 112 (840, 33.1) | 117.3 (880, 34.6) | 122.6 (920, 36.2) | 128 (960, 37.8) | 133.3 (1000, 39.4) | 138.6 (1040, 40.9) | 144 (1080, 42.5) | 149.3 (1120, 44.1) |
| 69.3 (520, 20.5) | 0 | 200 | 400 | 600 | 800 | 1000 | 1200 | 1400 | 1600 | 1800 | 2000 | 2200 | 2400 | 2400 | 2400 | 2400 |
| 74.6 (560, 22) | -200 | 0 | 200 | 400 | 600 | 800 | 1000 | 1200 | 1400 | 1600 | 1800 | 2000 | 2200 | 2400 | 2400 | 2400 |
| 80 (600, 23.6) | -400 | -200 | 0 | 200 | 400 | 600 | 800 | 1000 | 1200 | 1400 | 1600 | 1800 | 2000 | 2200 | 2400 | 2400 |
| 85.3 (640, 25.2) | -600 | -400 | -200 | 0 | 200 | 400 | 600 | 800 | 1000 | 1200 | 1400 | 1600 | 1800 | 2000 | 2200 | 2400 |
| 90.6 (680, 26.8) | -800 | -600 | -400 | -200 | 0 | 200 | 400 | 600 | 800 | 1000 | 1200 | 1400 | 1600 | 1800 | 2000 | 2200 |
| 96 (720, 28.3) | -1000 | -800 | -600 | -400 | -200 | 0 | 200 | 400 | 600 | 800 | 1000 | 1200 | 1400 | 1600 | 1800 | 2000 |
| 101.3 (760, 29.9) | -1200 | -1000 | -800 | -600 | -400 | -200 | 0 | 200 | 400 | 600 | 800 | 1000 | 1200 | 1400 | 1600 | 1800 |
| 106.6 (800, 31.5) | -1400 | -1200 | -1000 | -800 | -600 | -400 | -200 | 0 | 200 | 400 | 600 | 800 | 1000 | 1200 | 1400 | 1600 |
| 112 (840, 33.1) | -1600 | -1400 | -1200 | -1000 | -800 | -600 | -400 | -200 | 0 | 200 | 400 | 600 | 800 | 1000 | 1200 | 1400 |
| 117.3 (880, 34.6) | -1800 | -1600 | -1400 | -1200 | -1000 | -800 | -600 | -400 | -200 | 0 | 200 | 400 | 600 | 800 | 1000 | 1200 |
| 122.6 (920, 36.2) | -2000 | -1800 | -1600 | -1400 | -1200 | -1000 | -800 | -600 | -400 | -200 | 0 | 200 | 400 | 600 | 800 | 1000 |
| 128 (960, 37.8) | -2200 | -2000 | -1800 | -1600 | -1400 | -1200 | -1000 | -800 | -600 | -400 | -200 | 0 | 200 | 400 | 600 | 800 |
| 133.3 (1000, 39.4) | -2400 | -2200 | -2000 | -1800 | -1600 | -1400 | -1200 | -1000 | -800 | -600 | -400 | -200 | 0 | 200 | 400 | 600 |
| 138.6 (1040, 40.9) | -2400 | -2400 | -2200 | -2000 | -1800 | -1600 | -1400 | -1200 | -1000 | -800 | -600 | -400 | -200 | 0 | 200 | 400 |
| 144 (1080, 42.5) | -2400 | -2400 | -2400 | -2200 | -2000 | -1800 | -1600 | -1400 | -1200 | -1000 | -800 | -600 | -400 | -200 | 0 | 200 |
| 149.3 (1120, 44.1) | -2400 | -2400 | -2400 | -2400 | -2200 | -2000 | -1800 | -1600 | -1400 | -1200 | -1000 | -800 | -600 | -400 | -200 | 0 |
| (L/min) | ||||||||||||||||
MAP 6
| Amount of intake air when RH comb. valve switches (g (oz)/s) Battery voltage when RH comb. valve switches (V) |
10 (0.35) | 15 (0.53) | 20 (0.71) | 25 (0.88) | 26 (0.92) |
| 11 | 0.025 | 0.025 | 0.025 | 0.005 | 0 |
| 12 | 0.035 | 0.035 | 0.035 | 0.015 | 0 |
| 13 | 0.05 | 0.05 | 0.05 | 0.025 | 0 |
| 14 | 0.05 | 0.05 | 0.05 | 0.025 | 0 |
| (V) | |||||
MAP 7
| Amount of intake air when LH comb. valve switches (g (oz)/s) Battery voltage when LH comb. valve switches (V) |
10 (0.35) | 15 (0.53) | 20 (0.71) | 25 (0.88) | 26 (0.92) |
| 11 | 0.025 | 0.025 | 0.025 | 0.005 | 0 |
| 12 | 0.035 | 0.035 | 0.035 | 0.015 | 0 |
| 13 | 0.05 | 0.05 | 0.05 | 0.025 | 0 |
| 14 | 0.05 | 0.05 | 0.05 | 0.025 | 0 |
| (V) | |||||
MAP 8
| Amount of intake air when P0R is measuring (g (oz)/s) Battery voltage when P0R measuring (V) |
2 (0.07) | 25 (0.88) |
| 11.5 | 345 | 345 |
| 12.5 | 345 | 345 |
| 13.5 | 345 | 345 |
| 14.5 | 390 | 390 |
| 15.5 | 420 | 420 |
| (L/min) | ||
MAP 9
| Amount of intake air when P0L is measuring (g (oz)/s) Battery voltage when P0L measuring (V) |
2 (0.07) | 25 (0.88) |
| 11.5 | 345 | 345 |
| 12.5 | 345 | 345 |
| 13.5 | 345 | 345 |
| 14.5 | 390 | 390 |
| 15.5 | 420 | 420 |
| (L/min) | ||
MAP 10
| Amount of intake air (g (oz)/s) Engine speed (rpm) |
0 (0) | 60 (2.12) |
| 500 | 0 | 0 |
| 5000 | 0 | 0 |